Hello Alex,
Thanks for submitting a question about whether or not BoldGrid is a good fit for you. BoldGrid automates a lot of industry-standard design choices to allow you to build a great-looking site quickly. But this is on the “front end” of the site.
Everything you’ve mentioned is certainly possible but it would be build into the “back end” of the site, in the WordPress installation. In theory, you would use a handful of plugins and, if necessary, the expertise of a WordPress developer to manage the source files and database.
Best,
Christopher M.